Leather-working machine



(No Model.)

A. M. BOWERS.

LEATHER WORKING MACHINE.

No. 392,004. Patented 001s. 30, 1888.

soma/MM, @MLM-M BY. SW1/QSC@ mvs.

N. PETERS. Pnulo-Luhugmplwr, washington` DI c.

QUnire STATES ALBERT arena terres..

M. BOWIC 1S, OF NEWARK, NEW JERSEY.

LEATHER-WORKING MACHNE.

SPECIFICATION forming` part of Letters Patent No. 392,004, dated October 30, 1.888.

Application filed February 1S, 158.2. Serial No. QGLITG. (No model.)

To all whom, it may foncer/1,.'

Bc it known that l, ALBERT M. llownns, a citizen ofthe United States, residing at Newark, in the county of Ilssex and State of New Jersey, have invented certain new and useful Improvements in Iicatlier-XVorking Machines 5 and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

rIhis invention relates to that class of lcathcn.

working machines in which a bearingis adapted to engage one side of theleather and astaking-blade or other leather-working tool to engage the other side, the two working together backward and forward and coming in contact with the leather at the forward end of the stroke, then together moving backward in op erative relation to the leather, then at the rear end of the stroke separating, so as to allow the leather to be changed in its position between the jaws of the machine, and in the said separated relation moving forward to again come together to engage the leather and repeat the operative stroke.

The invention consists in the means hercin after specifically describcd,and linally embodied in the clauses ofthe claims.

Referring to the accompanying drawings, in which like letters of reference indicate eorrcspending parts in cach of the several figures, Figure l is a side elevation of a leather-working machine of the class to which myimprovements belong. Fig. 2 is a front view of the improved bearing in detail. Fig. 3 is a view of the same in its .relation to the blade, and Fig. 4 is a side elevation of a modied blade or tool.

In said drawings, a indicates the frame of a leather-working machine; b, a vibrating beam or rocker,whieh carries a bearing, c, to engage the 'upper side of the leather, being given a reciprocating movement by means of a connectingfrod, (l, and wheel c in any suitable manner, the said wheel, connecting-rod, and vibrating beam being in their construction, arrangement, and operation substantially the same as in a prior patent granted to me July 5, 1387, No. 365,963, the said connecting-rod l serving as a carriage for a series of levers, f, f, g, h, i, andj. Upon the last of said levers is arranged a staking blade or bladesJt', adapted to co-operate with the bearings c in giving finish to the leather. rlhc said staking-blade 7s, under the infiuence ofthe wheel e, connecting-rod (Land levers,has a reciprocating movement with the bearing c, so that they movetogetherin performing the operative stroke. In a cotemporaneous application I have shown the said bearing c to consist of a series of rollers or-mov'able bearings, the same being peculiarly desirable under certain circumstances to secure peculiar results upon the leather. In the present case, to secure other results upon the leather, I show the said bearing constructed of a series of cushions or pressurebearings, Z m, said bearings being rigidly secured to the head 1),which consists, preferably, of felt, leather, or other yielding material. Said leather or vfelt is held between clamping iaws or blocks a o p, which are suitably bolted or otherwise held upon the head b ofthe machine in any suitable manner, the peculiar mode preferred being shown in Fig.3,in which the jaw or block a is bolted upon the head br by means of the bolt q, the leather or felt bean ing Z being held against said jaw or block a, the bolt q passing through both the said blocks, head-piece b and the sct-serew r cooperating with the -blocks 0 n, and the lower end of the bolt q, in clamping the bearing Z, as will be understood upon reference to Fig. 8. Upon the opposite side el.' the block a is another bearing, m. 'Ihisis preferably ofleather, doubled to present a rounded surface ofsmoothgrain leather to engage the grain side of the leather being finished. The said doubled leather, m, is clamped against the block a by means of a plate, tp, the latter being held against said bearing in, by means of a bolt, rlhe bearings Z and in are disposed a little apart from one another to allow the introduction of the staking-blade therebetween, so that a deep fold, crimp, or crease is formed in the leather as it is drawn through the machine. By having the bearings l and m rigidly secured to the head. a greater frictional contact is secured, which is specially effective in securing the desired results on firm and hard. leather.

l may employ a single blade in lieu of the IOO double, as shown in Fig. 4, which enters between bearings Z and m, and instead of having two rigid bearings, l and m, I may have but one, in that case the stakingblade being adapted to engage the side ofthe said stationary bearing. Other changes of construction may be made on the machine without depart` ing from the spirit of this invention. Additional blades may be added to the series shown.

Having thus described the invention,what I claim as new isl. The combination, in a leather-Working machine, of leather or other HeXible bearings, l and m, and a staking-blade adapted to enter between said bearings and form a deep crease or fold in the leather, substantially as and for the purposes set forth.

2. In a leather-working machine, the combination of a frame, a, vibrating,` beam I), rod

wheel e, head b, carrying stationary bear ings Z and m, and a lever, j, carried by the said head d, and actuated by a series of levers on said rod d, the said leverj having thereon a staking blade or blades 7c, substantially as set forth.

3. In combination with the head b, aleatherworking machine, clamping blocks or jaws n, o, p, and q, flexible bearings Z m, rigidly secured to the head, suitable set-screws, and bolts, substantially as and for the purposes set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 1st day of February, 1888.

ALBERT M. BOWERS.

Titnessesz CHARLES H. PELL, OsoAR A. MICHEL. 

